<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 父组件模板-->
    <div id="app">
        <cpn >
            <template slot-scope="slot">
                    <!-- <span v-for="item in slot.pLanguages"></span> -->
                    <span>{{slot.data.join(' - ')}}</span>
            </template>
        </cpn>
    </div>  
 <template id="cpn">
    <div>
        <slot :pLanguages="pLanguages">
            <ul>
                <li v-for="item in pLanguages ">{{item}}</li>
            </ul>
        </slot>
    </div>
 </template>
    <script src="../js/vue.js"></script>
    <script>
          //父组件 ------ 双向绑定案例
          const app=new Vue({
            el:'#app',
           
            components:{
                    //组件名称
                    cpn:{
                        template:"#cpn",
                        data(){
                        return {
                            pLanguages: ['java','go','c','python']
                        }
                    }
                    },
                    
                }
        })
    </script>
</body>
</html>